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GNSS Hotspots | March 2014
March 23, 2014

GNSS Hotspots | March 2014

One of 12 magnetograms recorded at Greenwich Observatory during the Great Geomagnetic Storm of 1859
1996 soccer game in the Midwest, (Rick Dikeman image)
Nouméa ground station after the flood
A pencil and a coffee cup show the size of NASA’s teeny tiny PhoneSat
Bonus Hotspot: Naro Tartaruga AUV
Pacific lamprey spawning (photo by Jeremy Monroe, Fresh Waters Illustrated)
“Return of the Bucentaurn to the Molo on Ascension Day”, by (Giovanni Antonio Canal) Canaletto
The U.S. Naval Observatory Alternate Master Clock at 2nd Space Operations Squadron, Schriever AFB in Colorado. This photo was taken in January, 2006 during the addition of a leap second. The USNO master clocks control GPS timing. They are accurate to within one second every 20 million years (Satellites are so picky! Humans, on the other hand, just want to know if we’re too late for lunch) USAF photo by A1C Jason Ridder.
Detail of Compass/ BeiDou2 system diagram
Hotspot 6: Beluga A300 600ST

1. WHAT’S LOVE GOT TO DO WITH IT? 
Detroit, Michigan USA 

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By Inside GNSS
New GNSS Signals

New GNSS Signals

A. J. Van Dierendonck

The world’s GNSS systems are entering a phase of transformation — modernization of existing systems (the U.S. Global Positioning System and Russia’s GLONASS) and development of new systems (China’s BeiDou and Europe’s Galileo) that benefit from the lessons learned from the original GNSSs.

Notable among the modernization initiatives is an interest in implementing new satellite signal designs. These include the GPS L5, L2C, and L1C signals as well as those signals designed for Galileo and BeiDou. GLONASS designers are also working on modernized signals.

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By Inside GNSS
Who’s Your Daddy?
March 17, 2014

Who’s Your Daddy?

In this article, we will take a look at the various GNSS signals from the perspective of their cost-benefit tradeoffs. First, we’ll look at the evolution of consumer GPS architecture to date — where acquisition speed and sensitivity have been the main drivers of receiver architecture. That architecture has evolved rapidly to take full advantage of the characteristics of the GPS C/A code.

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By Inside GNSS
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Applanix Incorporates Trimble CenterPoint RTX GNSS Correction Service
January 22, 2014

Applanix Incorporates Trimble CenterPoint RTX GNSS Correction Service

Applanix Corporation announced that today (November 12, 2013) that the Trimble CenterPoint RTX correction service will be available across its entire airborne mapping portfolio. 

Trimble CenterPoint RTX correction service is a GPS-, GLONASS-, and QZSS-enabled correction service built on Trimble RTX technology that provides high-accuracy GNSS positioning without the use of traditional reference station-based differential RTK infrastructure.

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By Inside GNSS
GNSS Hotspots | January 2014

GNSS Hotspots | January 2014

One of 12 magnetograms recorded at Greenwich Observatory during the Great Geomagnetic Storm of 1859
1996 soccer game in the Midwest, (Rick Dikeman image)
Nouméa ground station after the flood
A pencil and a coffee cup show the size of NASA’s teeny tiny PhoneSat
Bonus Hotspot: Naro Tartaruga AUV
Pacific lamprey spawning (photo by Jeremy Monroe, Fresh Waters Illustrated)
“Return of the Bucentaurn to the Molo on Ascension Day”, by (Giovanni Antonio Canal) Canaletto
The U.S. Naval Observatory Alternate Master Clock at 2nd Space Operations Squadron, Schriever AFB in Colorado. This photo was taken in January, 2006 during the addition of a leap second. The USNO master clocks control GPS timing. They are accurate to within one second every 20 million years (Satellites are so picky! Humans, on the other hand, just want to know if we’re too late for lunch) USAF photo by A1C Jason Ridder.
Detail of Compass/ BeiDou2 system diagram
Hotspot 6: Beluga A300 600ST

1. E-CROWDSHIPPING
Palo Alto, California USA

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By Inside GNSS
Multi-GNSS Monitoring

Multi-GNSS Monitoring

Tim Springer, PosiTim UG

A common refrain in the world of GNSS is the desire for “interoperability,” the use of signals from multiple systems without a decline — and potentially even an improvement — in the quality of results.

Achieving this depends on large part in establishing comparable parameters — particularly the geodetic references and timing systems — among the GNSSs along with a dense network of ground reference stations that can provide continuous, precise monitoring of satellites’ orbital positions.

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By Inside GNSS
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Ionospheric Scintillation
January 19, 2014

Ionospheric Scintillation

Ionospheric scintillations are rapid temporal fluctuations in both amplitude and phase of trans-ionospheric GNSS signals caused by the scattering of irregularities in the distribution of electrons encountered along the radio propagation path. The occurrence of scintillation has large day-to-day variability. The most severe scintillations are observed near the poles (at auroral latitudes) and near the equator (within ± 20 degrees of geomagnetic equator).

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By Inside GNSS
Reaching for the STARx

Reaching for the STARx

Equation 1

GNSS modernization includes not only the global coverage capabilities of GPS, GLONASS, Galileo, and BeiDou, but also regional GNSS enhancement systems such as Japan’s Quasi-Zenith Satellite System (QZSS), the Indian Regional Navigation Satellite System (IRNSS), and the European Geostationary Navigation Overlay Service (EGNOS).

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By Inside GNSS
Baška GNSS Conference 2014
January 9, 2014

Baška GNSS Conference 2014

The 8th annual conference on the Croatian Adriatic aims at GNSS experts and and focuses on GNSS resilience and GNSS applications development. It will take place at Baška on the resort island of Krk in Croatia from May 7 to May 9, 2014.

The deadline for abstracts is March 1, 2014.

Topics include:

  • core satellite navigation systems’ developments and modernisation,
  • satellite-based augmentation systems (SBAS),
  • space weather and ionospheric effects on GNSS performance and operation,
  • GNSS applications for air, marine, land and personal navigation, Location-Based Services, Intelligent Transport Systems, and Search and Rescue (SaR) operations,
  • resilience development againts natural (space weather and ionospheric) and artificial (jamming, spoofing and meaconing) disruptions of GNSS services
  • statistical and digital signal processing for electronic navigation and weak signal detection,
  • GNSS receiver design (including Software-Defined and Cognitive Radio),
  • GNSS education and professional advancement,
  • advanced multidisciplinary GNSS applications (in geomatics, transport, predictive analytics, remote sensing, agriculture, geodesy, forestry, tourism, environment protection, meteorology and science),
  • GNSS advancements, parallels and alternatives,
  • regulatory and legal aspects of GNSS utilisation,
  • Special session: space weather effects on GNSS performance and operation
  • Special session: statistical signal processing and Bayesian estimation for satellite navigation, and
  • Special session: Intelligent Transport Systems (ITS)

The Royal Institute of Navigation, London, UK, Faculty of Maritime Studies, University of Rijeka, Croatia and Faculty of Transport and Traffic Sciences, University of Zagreb, Croatia, and is technically co-sponsored by Beihang University of Aeronautics and Astronautics, Beijing, China.

For more information, contact Ms. Sally-Anne Cooke, the RIN conference and events manager at conference@rin.org.uk

By Inside GNSS
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